Update .gitlab-ci.yml

.gitlab-ci.yml

@@ -2,8 +2,10 @@ buildtest:
   image: debian:stretch
   stage: test
   script:
+    - apt update
+    - apt install wget
     - 'echo "deb http://www.deb-multimedia.org stretch main non-free" >> /etc/apt/sources.list'
-    - curl https://www.deb-multimedia.org/pool/main/d/deb-multimedia-keyring/deb-multimedia-keyring_2016.8.1_all.deb -o deb-multimedia-keyring_2016.8.1_all.deb
+    - wget https://www.deb-multimedia.org/pool/main/d/deb-multimedia-keyring/deb-multimedia-keyring_2016.8.1_all.deb
     - dpkg -i deb-multimedia-keyring_2016.8.1_all.deb
     - apt update
     - uname -a